Why has the game been delayed twice?
Other then polishing, de-bugging, and enhancing the game in whatever ways possible, there is another answer to consider.
In a business point of view, if Brink is released now, it will not stand a chance out there in the gaming world. Speak to the average gamer,
"what game would you choose out of the two, Call of duty or Brink." Straight away the answer is evident, Call of Duty. Between now and spring next year,
A grade games are being constantly released. You got Black Ops, Reach, Playstation Move, KIllzone, Resistance and many many more.
So when everyone is sick of Black Ops, bang! Release Brink the quiet season. Something fresh, something new.
And then, that's when you start raking in the sales.